defconfig: msm: enable PCIe MSI for all chipset that support QGIC

PCIe bus driver no longer supports QGIC. Enable PCIe MSI
controller for sa8155, sdmsteppe, and trinket so that QGIC
MSI is supported.

Change-Id: I1cbc092187f941c28142b6ff7bf653b5de1e2d22
Signed-off-by: Tony Truong <truong@codeaurora.org>